Tames d



LAD. ONEILL.

TRACK SCALE.

APPLICATION'WILED )ULY 3'1915.

Patented Aug. 2U, 1912).

/m/ew/ar i e. torsion l mounted on and between the jews of the levers Ill and l2 in the well known menner, and each carry n .imite edge pivot 2l, all three pivots being arranged axially in. line.

These nose irons ere slotted et 22 and con-A per ends by et" nuts 2G or any other suitable ineens, so that ell three may be ed jnsted to uniformly support en evener 27 eX- tending transversely of the levers ll end 19. A U-loolt 28 is connected to the e'if'ener between the links 25 by Ineens of nuts 29 or other suitable ineens. 'This illicit 28 with the evener is arranged centrally below the pivot-s 2l. and supports' a shncl-:le or loop 30 carrying the knife pivot 3l, with which the'beeringr ol the tilth lever 13 engages. Each saddle is piovided on its sides with smell ynietes comiectecl thereto by screws or other suitable ineens, end lying outside the ends el! the pivots il. The pin-pose of these plates is to pri, .nt the saddles slipping ott' the pivots.

llt will be clearly seen from the drawings tlmt the pull eithei or both oit the levers ll and l2 is vtrfmsnit'cd to the fifth lever 13 in such :i wey tlmtit exerted centrally on the lever and exerts no toi'sion whatever in this lever. lt will thus be seen that no nietter how the platform is loaded, the weight will exert onlv n. centrnl null on the fifth lever, so that none of the pull will be lost in construct the fifth lever so that there will be absolutely no flexion therein, but it is practically impossible, fis any one versed in the art will readily understand, to construct n lever ot nncticel size weight which will be prooiz against tofsion stresses. The de.- viice is exi einely nple end dnrnble, end will enable absolutely eccnrnte weighing to he performed neder .fill conditions et londingf.

lilliil this invention hes been described :md illnstrnteil perticnlnily vlih reference to. one type ot tinck scales, it is obvious that the improvement is not limited to this peiticnlnr type or hind oi'f scale` but may be ep- }1'"' lo n l :n'gre variety ol types, end theretore it is by no ineensessentinl to the invenr tion that the lifth lever be below the secondary levers or n t rigljht `ein'fgles thereto. No11 is the invention limited to the particular shape of levers or details ot constrnctioi'i.

l-levine' thus described niv invention, what l' claim is:

l, ln eevice of the chaeeter described,

lt is easily possible to the saddles and evener, ay lil-holt cctv" the combination with n tillih lever el n ,iiii of secondary levers overlapping side h r .'--iidc at their ends, independently oijiernble conVA necting Ineens between the scceinlnry leven-a and the fifth lever, and pivots disposed on the overlapping ends of sind secondary letudinnl axis thereof.

3 Il! a device ot' the Chorin-lc;- desc'iheii. the combination with :l i'l'th levi-i` of :i i of secondary levers overlapping; nt tici: ends7 pivots mounted in line Vwilli oner z other on seid secondary levers end in lh'. plane of oscillation ot the litth lever` und :i connection between snid pivots, und the l l'lh lever arranged to distribute the null ol .wir i ScCOndaiy lever uniformly on with .sidiI thc longitudinal exis ot the lil'lh vwif mi prising` en evener, links connect ing siii-fl swondery levers therewith :inde linli conm-cling seid evener with seid lillh lever.

4. H a device of the elm 'noter ilesi'zriler. the combination with n li'l'l'h leve: ol' :i i i of secondary levers, one ot which is liii all 'cated :it its end for the receplion of the other lever, pivots i'nonntcd on the endif. olj smid secondary levers in line with one another and in the plane of oscillation oi the lillii lever passing through the longitudine! nids thereof, and indepcndently operable connections between seid 'pivots :nid the llltli lever arranged to transmit Alhe pull ol' nny ol ihe Secondary levers centrally on the ti ith lever independently o't the othcisecondary 5. In :1 device of the elnirncl'ei' de the con'ibination with :i li'l'th lever ol: :i of secondary levers ovinflnpi'iinfg fit ends, pivots nnnmted on seid leven `with one another und in the pinne oi lation ol" the fifth lever coni mining' the lo tn'dinel exis thereof, saddles resting on pivots, and. e' connection beiaween seid dlcs and the lilith lever eonnectineV the, efe. ondeliy levers with one another,

6. In a device oit the character ilesoibfl. lthe combination with e. lit'th lever o; ondary lever biturcetf-d :it its ""id :i i further secondary lever having end ,insitioned between the bifurcations ol thiL ol lier. knife edge pivots mounted on the 'i'.'ite" the fifth lever, a. saddle Testing on pivot', an evener on the opposite side olevers 'from sind saddles, links cenni lll( Leie/lee te the evener intermediate the links7 e loop 'the end of the fifth lever, and e pivot n-seid loep -for e bearing of the fifth lever.

7` ln e seele, e lilith lever, a. peil' of levers having; adjacent e'ncl pivots arranged in line larensversely thereof sind in the plane of the longitudinal exis of the fifth lever, and independent connections between.A said levers and the liftli lever each arranged to transmit force *to the fifth lever` in the plane of the longitudinal exis.

8. ln e seele, a fifth lever, a pair of levers having extension lever pivots errlng'ed in line with ene another and in the piene of the Central exis of the fifth lever'` and independent Connections betweff" Seid levers und the fifth lever supported b y said pivots end eeeli arranged to transmit force to the liftlr lever equally on each side of its longitudinal ms,

9. lin e seule1 e pair of levers arranged in linee, there being bifurcations on one of said levers7 embrnng the end of the other lever, und pivote disposed on seid lever ends in the plane of the eentrul axis of the lilith lever, and independent eonneetjonvbetvveen sind levers and the fifth lever supported by' seid pivote and eeen arranged to treuen foree le the lh lever exnellj," en eeeli el lengimirl'lnel eine;

l()n ln e track seele, the eeinliinetien with levers, zirrengefl in fr efnnnien plaine enel liev ing; 'transversely-eizztenli M pivote Sylnnietri Gally errenrged with respeet te eeltl nlane enclin substantiel elinenient "with eeeli otlex; e li'fth lever in the plane ef seid pivote enfl e connecter' between seid levers and lilith lever, comprising en independent neming for eeeli of 'seil pivote, linke eenneeteel te said bearings9 and en evener eonneetien tween linke.

1L lin e t'eel; seele1 the combination vvi'iii. eppeeitelyextending alleen iev wel, transverse pivots 'ther lor in substantiel elinenient with ee 1 etlief, litli .lever pre vided with e pivot enel Ineens eenneeting seid transverse pivote te eeicl filth lever pivot, inelutlinp; en evener e nneetien.

n' Witness whereof l lieve hereunto eet my liencl in the pre-sence el" tivo J lili llllllllln.

Witnesses M. G. .Sunni-ionen? G. 'lv/L li/lormnmn lill 

